<html>
<body>
Test with requestBody
</body>
<h3>upload</h3>
<form action="/api/upload" method="post" enctype="multipart/form-data">
    <input type="file" name="file">
    <button type="submit">submit</button>
</form>
<h3>form</h3>
<form action="/api/form" method="post">
    <input name="nickname">
    <input name="name">
    <button type="submit">submit</button>
</form>
</html>